81128841 (number)

81128841 is an odd 8-digits composite number following 81128840 and preceding 81128842. In scientific notation, it is written as 8.1128841 × 10^7. The sum of its digits is 33. It has a total of 4 prime factors and 16 positive divisors. There are 50397120 positive integers (up to 81128841) that are relatively prime to 81128841.

Interesting facts

Basic properties

Name

Name eighty-one million one hundred twenty-eight thousand eight hundred forty-one

Notation

Scientific notation 8.1128841 × 10^7
Engineering notation 8.1128841 × 10^6

Prime Factorization of 81128841

Prime Factorization 3 × 61 × 19 × 23333

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 81128841
Product of the distinct prime numbers

The prime factorization of 81128841 is 3 × 61 × 19 × 23333. Since it has a total of 4 prime factors.

Most popular turbo-numbers

9, 2, 34, 100, 724, 963, 8086, 6149, 20548, 26952, 896657, 804747, 583890, 8004206, 34239847, 3982583, 131646078, 207398537, 4033647108, 841666438

Basic calculations (n = 81128841)

Multiplication

n×y
n×2 162257682
n×3 243386523
n×4 324515364
n×5 405644205

Division

n÷y
n÷2 40564420.5
n÷3 27042947
n÷3 20282210.25
n÷5 16225768.2

Exponentiation

ny
n2 6581888842003281
n3 5.3398101334256E+23
n4 4.3321260728487E+31
n5 3.514603673561E+39

Nth Root

y√n
2√n 9007.1549892294
3√n 432.90415805493
4√n 94.906032417489
5√n 38.17992354132

Divisors of 81128841

1, 3, 19, 57, 61, 183, 1159, 3477, 23333, 69999, 443327, 1329981, 1423313, 4269939, 27042947, 81128841

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81128840
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G Geometric Mean 1
Returns the nth root of the product of n divisors
H Harmonic Mean 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81128841 can be divided by 16 positive divisors. The sum of these divisors (counting 81128841) is 1, the average is 0.0625.

Base conversion 81128841

Base System Value
2 Binary 100110101011110110110001001
3 Ternary 12122122202211220
4 Quaternary 10311132312021
5 Quinary 131232110331
6 Senary 12014512253
8 Octal 465366611
10 Decimal 81128841
12 Duodecimal 23205689
16 Hexadecimal 4d5ed89
20 Vigesimal 1571221
36 Base36 1cavex

Cryptographic Hash Functions

md5 6ffe268ca953fef8e60e8f3ade522989
sha1 a2e14a4fa0e6715bb93a56f9743adf183bdfaace
sha256 29d0f15625791436466999546676ff1ff3baf6584315349ff70da8323f31154d
sha512 fe6730d242ec559a702506b17719f5a12ef5dac2dbebbb6e723ae836b94217981969f37ccab070cb215d5581249884dcd50815f7d5ab57682631ae1da2351e1e
ripemd-160 d8e31131d46f1b7372c45f58c1dfa26ac04d2bea

81128841 as geometric shapes

Circle

Radius = n
Diameter 162257682
Circumference 509747541.75971
Area 2.0677613632782E+16

Sphere

Radius = n
Volume 2.2367344382312E+24
Surface area 8.2710454531129E+16
Circumference 509747541.75971

Square

Length = n
Perimeter 324515364
Area 6581888842003281
Diagonal 114733507.24181

Cube

Length = n
Surface area 39491333052019686
Volume 5.3398101334256E+23
Space diagonal 140519274.57118

Equilateral Triangle

Length = n
Perimeter 243386523
Area 2.8500414710301E+15
Altitude 70259637.285589

Triangular Pyramid

Length = n
Surface area 2.8500414710301E+15
Volume 6.2930265926565E+22
Height 38244502.413937